@INPROCEEDINGS{KuntzeSchmidtKasper2008A, author = {Andreas U. Schmidt and Nicolai Kuntze and Michael Kasper}, title = {Subscriber Authentication in Cellular Networks with Trusted Virtual SIMs}, booktitle = {Proceedings of the 10th International Conference on Advanced Communication Technology, Feb. 17-20, 2008, Phoenix Park, Korea}, year = {2008}, volume = {2}, pages = {903-908}, organization = {IEEE}, abstract = {The primary goal of this paper is to design a software replacement for a Subscriber Identity Module (SIM) based on the TCG MPWG Reference Architecture in order to access a mobile cellular network and its offered services. Therefore, we introduce a virtual software SIM (vSIM) with comparable usage and security characteristics like the traditional smartcard-based solution. Additionally, running a virtual SIM as a trusted and protected software on a mobile device allow significant expansion of services by introducing new usage scenarios and business models, cost reduction and more flexibility. Our approach demonstrates the substitutability of a SIM card with an adequate trusted software module supported and protected by a trustworthy operating system. In particular we propose several methods for authentication and enrollment of a subscriber.}, doi = {10.1109/ICACT.2008.4493913}, }